Oil-rig shaft-box.



I No. 868,647-

E. W. UOKBLY.

OIL RIG SHAFT BOX. APPLIOA'IION 11.21) MAY 6, 1907.

ll /0 0 d 0 7 wifnesse InvenTor I PATENTED OCT. 22, 1907.

ELMER W. OOKELY, OF COALINGA, CALIFORNIA.

OIL-RIG SHAFT-B OX.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed May 6,1907. Serial No. 372,253.

To all whom it may concern:

Be it known that I, ELMER W. CoxELY, a citizen of the United States, residing at Coalinga Fresno county, Calil'ornia, have made certain new and useiul Improvements in Oil-Rig Shaft-Boxes, ol' which the following is a specification in such lull and clear terms as will enable those skilled in the art to construct and use the same.

The objects of this invention are to make a box that may be placed on the top of a post and secured there without the use of bolts through the post,'to make a box that is easily removed from the post, and to make it possible to secure the post in its position with very little trouble.

A further object of the invention is to provide means to take up any looseness that may occur in the 1'raming,

due to wear, at any time that it may be necessary.

A further object ol' the invention is to make a box that may be placed on the top of a post and subjected to very heavy strains and jars such as is common in well drilling machinery, but it may be used in any similar position.

A further object of th e invention is to make a box that will stand all such strains as the above and such a box as will equalize the strains on all the timbers, since with the turnbuckle rods used the strain on the box is distributed to the rest 01' the frame of the oil rig or other frame.

A further object of the invention is to make such a box as will be able to stand any heavy strains and still remain in the proper position even though the timber on which its support r sts is badly rotted from long exposure to the weather, as is the case in oil rigs and other outdoor machinery.

Further objects oi the invention will appear as the description proceeds.

In the drawing li l; e numerals refer to like parts throughout.

Figure l is a side elevation of the box as used on the oil rig, and a part of the framing of the rig, and Fig. 2 is a plan of the box alone.

ln well drilling machinery it is necessary to have a '10 it. band wheel supported on the top of a large post 16 inches square. The band wheel is in turn supported in a large box about the size oi-the top of the post and this box is usually fastened to the post by means of bolts, but since the bolts are run into the post in the direction of its grain it is practically impossible to sccure the box so it will not work loose. The time taken in drilling a deep well is often as long as a year and often 1% yrs. so the box must be able to stand a very large amount of heavy strain and wear. Then the wood oi the frame may rot a little and allow the post to shake it no means is provided to prevent it from so doing.

The above defects are sought to be avoided in the construction here set forth.

The post 2 which supports the box 3 is let into the sill 1 a small amount and it is secured there by means of the block 12. The box 3 is placed directly on' the top of the post 2 and to secure it on the post the flanges 8 are dropped down over the top of the post to the front and rear, as shown in Fig. 1. The box is open on top and carries the shaft 4 which supports the wheel 5 which runs in Contact with a second wheel 6.

In order to secure the box and post firmly in place two large knobs are provided at each end of the box and extending upwardly irom the same, see- 7, and over these knobs are placed two eyebolts 9 carrying turnbuckles 10, and secured to the sill 1 by means of the eyebolts 11.

The box is provided with the common oil holes 12.

Now it will be apparent that since there is no side thrust that the box will be able to resist all stresses tending to displace it to the iront or rear, by means of the flanges 8, and the post will be able to resist all stresses the better on account of the pair of rods 9 which are well secured in the frame sill 1 at a considerable distance apart.

Modifications in the invention may be made without departing from the spirit of the claims hereto appended. I claim as my invention and desire to secure by Letters Patent oi the United States the following:

1. In a shaft box, the combination of a bearing box carrying flanges depending from the same in planes parallel to the shaft axis and having upstanding lugs near each end of the box.

2. In an oil rig box, the combination of a sill, a post carried thereby, a box carried directly on the top of the post and having flanges depending on either side of the post and upstanding lugs at each end of the box, and a pair of stay bolts for said box secured at one of their ends to the sill and passing around the lugs of the box at their other ends.

In testimony whereof I have hereunto set my hand in the presence ol two witnesses this 29th day of April A. D. 1907, at Coalinga, Cal.

'ELMER W. COKELY.

Witnesses 2 N. L. PALMER, H. .T. BROWN. 

